I think BI cares, but not as much as we want.
Making a Kart DLC? Funny idea - but how about first fixing THIS problem? I don`t get it...

Regarding to the age of this report, the very high votes on this topic - and the fact nothing have been improved - it seems like we need to wait for 5 more DLC before BI will address this issue. Oh wait they won`t. After 5 more DLC our hardware will be fast enough to get high FPS without optimising. *sigh*